Footwear sole



FIG. 1 is a plan view of a footwear sole showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a perspective view thereof.

The broken line showing a shoe upper in the figures is environmentalonly and forms no part of the claimed design.

The ornamental design for a footwear sole, as shown and described.